Compare
Langfuse vs Pieces Copilot
Observability for LLM apps, whereas Pieces stores personal work context.
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LangfuseOpen Source Observability & Analytics for LLM Apps 🕵️♂️
Pieces CopilotThe AI coding sidekick that understands your workflowWhich to pick
Pick Langfuse if you want…
- LLM observability & analytics
- A free plan to start with (Hobby)
- Integrations with Python, TypeScript or Go (on Langfuse's list, not Pieces Copilot's)
Pick Pieces Copilot if you want…
- Context-aware AI assistance
- Integrations with Gmail, Outlook or Chrome (on Pieces Copilot's list, not Langfuse's)
Side by side
- What it is
- Langfuse:Langfuse is an open-source platform for tracing, evaluating and monitoring LLM applications and AI agents.
- Pieces Copilot:Pieces Copilot captures your work history and provides searchable, contextual AI assistance across apps.
- Best for
- Langfuse:LLM observability & analytics
- Pieces Copilot:Context-aware AI assistance
- Who it’s for
- Langfuse:Developers building, debugging and scaling LLM-based apps and agents.
- Pieces Copilot:Developers and knowledge workers who need instant recall of their workflow.
- Pricing
- Langfuse:Freemium
- Pieces Copilot:Paid
- Plans
- Langfuse:Hobby Free · Core $29 per month · Pro $199 per month · Enterprise $2499 per month
- Pieces Copilot:Pro $18.99 per user / month · Enterprise $22.99 per user / month
- Open source
- Langfuse:Yes, 35,097 GitHub stars
- Pieces Copilot:Yes
- Works with
- Langfuse:Python, TypeScript, Go, Java, .NET, Ruby, PHP, Swift
- Pieces Copilot:Gmail, Outlook, Chrome, Arc, Safari, Slack, Microsoft Teams, Google Chat
Langfuse features
- Hierarchical Traces. Capture every LLM call, tool invocation and retrieval step with filters for user, session, cost and latency.
- Prompt Management. Version, fetch, release and cache prompts separately from code with one-click deployments.
- Evaluation Engine. Run LLM-as-judge, heuristic or human-review evaluations on production data or experiments.
- Experiments & Datasets. Define test cases, run experiments and create golden datasets for continuous improvement.
- Dashboards & Alerts. Monitor cost, latency and quality via custom dashboards and automated alerts.
- Human Annotation. Collaborative human-in-the-loop workflows with annotation queues.
- Extensive Integrations. Supports Python, TypeScript, Go, Java, .NET, Ruby, PHP, Swift and 100+ agent frameworks and model providers.
- Self-hosted & Cloud Options. Available as hosted SaaS or self-hosted under MIT license.
Pieces Copilot features
- Live timeline. Chronological capture of research, chats, emails, notes, and meetings.
- Searchable memory. Search, filter, and revisit any moment by time, topic, person, or tool.
- One-click summaries. Generate stand-up updates, briefs, and recaps instantly from your context.
- Multi-model support. Switch between Claude, Gemini, ChatGPT, and local models in a single plan.
- MCP integration. Carry full history into any MCP-ready AI assistant such as Claude, Cursor, Codex.
- Privacy controls. Data stored on-device by default; pause or disable capture per app.
- Enterprise governance. Org-wide capture policies, approved providers, and custom API keys.
Langfuse vs Pieces Copilot FAQ
Is Langfuse or Pieces Copilot free?+
Langfuse has a free plan (Hobby); paid plans start at $29/month (Core). Pieces Copilot is paid, from $18.99/month per user (Pro), with a free trial.
Which is cheaper, Langfuse or Pieces Copilot?+
Langfuse starts at $29/month (Core) and Pieces Copilot starts at $18.99/month per user (Pro); the plans are billed differently, so compare what's included.
Is Langfuse or Pieces Copilot open source?+
Yes, both are open source: Langfuse (langfuse/langfuse on GitHub) and Pieces Copilot.
Do Langfuse and Pieces Copilot integrate with the same tools?+
Their integration lists don't overlap: Langfuse lists Python, TypeScript, Go, Java and 10 more; Pieces Copilot lists Gmail, Outlook, Chrome, Arc and 10 more.
On DevHunt
Pieces Copilot
63 upvotes · Launched on DevHunt on Mar 5, 2024
Based on each tool's website and DevHunt data. Details may change; check the official sites.